wget/m4/libunistring-optional.m4

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# libunistring-optional.m4 serial 1
dnl Copyright (C) 2010-2019 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl gl_LIBUNISTRING_OPTIONAL
dnl Searches for an installed libunistring or uses the included source code
dnl parts.
dnl If found, it sets and AC_SUBSTs HAVE_LIBUNISTRING=yes and the LIBUNISTRING
dnl and LTLIBUNISTRING variables and augments the CPPFLAGS variable, and
dnl #defines HAVE_LIBUNISTRING to 1. Otherwise, it sets and AC_SUBSTs
dnl HAVE_LIBUNISTRING=no and LIBUNISTRING and LTLIBUNISTRING to empty.
AC_DEFUN([gl_LIBUNISTRING_OPTIONAL],
[
dnl gl_LIBUNISTRING does a couple of extra things if this macro is used.
AC_REQUIRE([gl_LIBUNISTRING])
AC_MSG_CHECKING([whether to use the included libunistring])
AC_MSG_RESULT([$gl_libunistring_use_included])
])